Human resources is a broad discipline that contains several different certifications:

Professional in Human Resources (PHR)This focuses on the operational and more technical aspects of the human resource practices. It is based in U.S. law and regulations and it is designed for those who:

are tactical and logistical thinkers

focus on the implementation of programs

are held accountable to another HR professional in the organization

come in with 2 to 4 years experience in the HR disciplines (this experience isn't as deep as that of a senior practitioner)

doesn't have more complicated and progressive work experience

focus on the HR department instead of the entire organization

Senior Professional in Human Resources (SPHR)While the PHR is focused on the organizational aspects, the SPHR focuses on the bigger picture. An SPHR:

plans HR policy that is passed down

has the ultimate accountability of the entire HR department

has 6 to 8 years of difficult HR experience

is knowledgeable about all HR disciplines

uses the judgement that is gained with time

Global Professional in Human Resources (GPHR)This certification is good for companies that hire professionals across the world. The GPHR:

has HR responsibilities that aren't confined by national borders

understands globalization strategies

develops, and evaluates programs, tools, and processes

oversees practices that balance employee rights with the needs of the employer

Human Resource Management Professional (HRMP)This credential is also globally relevant and is designed for those who are management-level in their knowledge and skills. They have mastery of generally accepted principles and strategy. The certification will demonstrate the HR professional's skills in: